My Note 10 Plus is constantly on Wifi. I will be testing it on MTN network from Friday to see how battery life is. I know with my Note 8 the Cellphone Networks kills a battery very quickly. And that is because of a terrible infrastructure. Where I live, I get about 5-10 mbps on LTE.
I have actually been a bit disappointed in the note 10 plus battery life. However, I think the 2nd sim which is Cell C, constantly switches between On/Off/Roaming/Rinse/Repeat at my house which used to kill my previous phone batteries so the same might be happening here.
Also I havent taken into account the size and resolution of the screen, so might have been expecting too much.
But overall the phone has been a big power boost.
Also love that the dual sim phone supports volte on MTN and cell C wifi calling at the same time.